Overview

Lieutenants and Light provides an accurate, detailed historical study of the U.S. Army’s use of the heliograph as a tactical means of communication and command and control in the desert environment of Arizona and New Mexico in the late nineteenth century. The heliograph network in the Southwest, which began development in 1882, used mirror-based signaling devices to facilitate communication across remote outposts, forts, and detachments. Heliographs enabled soldiers to send messages over long distances using Morse code transmitted through sunlight reflections. During and immediately following the campaign against Geronimo in 1886, General Nelson A. Miles implemented a heliograph network that connected key locations from Nogales, Arizona, to Fort Stanton, New Mexico, enhancing command and control. Additional tests and expansions solidified the heliograph’s role as an essential military communication tool. Reports from the officers tasked with establishing these stations and modern geospatial analysis have identified almost ninety networked heliograph stations established between 1882 and 1893, culminating in the greatest heliograph network ever built. Many of the officers who helmed these stations went on to distinguished careers in the military, business, or public service. Some had served in the Civil War, and most were veterans of the Indian Wars. Almost a third of these young officers would go on to become general officers, several serving in leadership roles during World War I. Thus, the heliograph not only connected points across the Southwest but also linked a group of officers whose experience and leadership spanned from the Civil War through World War I.

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9780826368409

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Reviews

""This is an extraordinary history integrated with a scientific treatise on geospatial relationships employed as a tool of military intelligence and operational and tactical command. . . . It is an exemplar of geographic modeling and is a prime example of the historian's craft.""--Thomas T. Smith, author of Under the Double Eagle: Citizen Employees of the U.S. Army on the Texas Frontier, 1846-1899

Author Information

Robert E. C. Davis spent twenty-five years on active duty in the United States Marine Corps and retired in 2008 as the colonel of an artillery regiment. He holds a BS in geography from the University of Utah, an MA in national security and strategic studies from the College of Naval Warfare, an MS in geographic information systems technology from the University of Arizona, and a graduate certificate in remote sensing and earth observation from Penn State University. He is certified as a mapping scientist by the American Society for Photogrammetry and Remote Sensing.

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